Common/vtkLine.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkLine.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00055 #ifndef __vtkLine_h
00056 #define __vtkLine_h
00057 
00058 #include "vtkCell.h"
00059 
00060 class VTK_COMMON_EXPORT vtkLine : public vtkCell
00061 {
00062 public:
00063   static vtkLine *New();
00064   vtkTypeMacro(vtkLine,vtkCell);
00065 
00067 
00068   vtkCell *MakeObject();
00069   int GetCellType() {return VTK_LINE;};
00070   int GetCellDimension() {return 1;};
00071   int GetNumberOfEdges() {return 0;};
00072   int GetNumberOfFaces() {return 0;};
00073   vtkCell *GetEdge(int) {return 0;};
00074   vtkCell *GetFace(int) {return 0;};
00075   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00076   void Contour(float value, vtkDataArray *cellScalars, 
00077                vtkPointLocator *locator, vtkCellArray *verts, 
00078                vtkCellArray *lines, vtkCellArray *polys, 
00079                vtkPointData *inPd, vtkPointData *outPd,
00080                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00081   int EvaluatePosition(float x[3], float* closestPoint,
00082                        int& subId, float pcoords[3], 
00083                        float& dist2, float *weights);
00084   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00085                         float *weights);
00086   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00087   void Derivatives(int subId, float pcoords[3], float *values, 
00088                    int dim, float *derivs);
00090 
00092 
00094   void Clip(float value, vtkDataArray *cellScalars, 
00095             vtkPointLocator *locator, vtkCellArray *lines,
00096             vtkPointData *inPd, vtkPointData *outPd,
00097             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00098             int insideOut);
00100 
00102 
00104   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00105                         float x[3], float pcoords[3], int& subId);
00107 
00108 
00110 
00115   static int Intersection(float p1[3], float p2[3], float x1[3], float x2[3],
00116                           float& u, float& v);
00118 
00119   
00121 
00123   static float DistanceToLine(float x[3], float p1[3], float p2[3], 
00124                               float &t, float closestPoint[3]);
00126   
00127   
00131   static float DistanceToLine(float x[3], float p1[3], float p2[3]);
00132 
00134   static void InterpolationFunctions(float pcoords[3], float weights[2]);
00135 
00136 protected:
00137   vtkLine();
00138   ~vtkLine() {};
00139 
00140 private:
00141   vtkLine(const vtkLine&);  // Not implemented.
00142   void operator=(const vtkLine&);  // Not implemented.
00143 };
00144 
00145 #endif
00146 
00147